docker and usage

Start using Docker! ❓ What is docker? ➕ Docker is a platform that allows developers to package, deploy and run applications in isolated environments. ❓ What is a Docker image? ➕ A Docker image is a read only template that contains a set of instructions for creating a container that can run on the Docker platform. ❓ What is a docker container? ➕ A container is a standard unit of software that packages up code and all its dependencies so the application runs quickly and reliably from one computing environment to another. ❓ What is the difference between Docker image & Docker container? ➕ An image is a read only template with code and dependencies while a container is a running instance of an image that provides an isolated environment for an application to run. ❓ Where can Docker be used? ➕ Docker can be used to build and deploy applications in various environments including development, testing, staging and production(across different operating systems and cloud platforms).